... 3.5hours tested 10kva to 100kva LPG gas generator with high quantity 60kW Gas engine technical specification and quotation1. ... stroke, water cooled, turbocharged and aftercooled, spark plug ignitionBore 105mmStroke 125mmTotal displacement 6.5LCompression ratio 11. ... stroke, water cooled, turbocharged and aftercooled, spark plug ignitionBore 140mmStroke 160mmTotal displacement 14.8LCompression ratio 11.5 ...